Wall panel



FIG. 1 is a top, front, left side perspective view of a wall panel embodying our design;

FIG. 2 is a front elevational view thereof, the rear elevational view being plain and unornamental;

FIG. 3 is a left side elevational view thereof, the right side elevational view being a mirror image thereof; and,

FIG. 4 is a top plan view thereof, the bottom plan view being a mirror image thereof. 

The ornamental design for a wall panel, as shown and described. 